<html>
    <head>
        <title>Test</title>
        <style>
          body {
            background-color:#035;
            aspect: Particles url(particles.tis);
            margin:0;
          }

          h2 {
            margin:*;
            width:max-content;
            height:max-contnent;
            color: #fff;
          } 

        </style>
        <script type="text/tiscript">
        </script>
    </head>
    <body>
       <h2>Hello particles</h2>
    </body>
</html>